CN203422741U - Bus signal wiring device - Google Patents
Bus signal wiring device Download PDFInfo
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- CN203422741U CN203422741U CN201320503031.XU CN201320503031U CN203422741U CN 203422741 U CN203422741 U CN 203422741U CN 201320503031 U CN201320503031 U CN 201320503031U CN 203422741 U CN203422741 U CN 203422741U
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- bus
- switch
- electrical power
- branch line
- power wiring
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Abstract
The utility mode discloses a bus signal wiring device which comprises a bus and a plurality of branch wires. The signal input end of each branch wire is connected with the bus, and the signal output end of each branch wire is used for being connected with a testing actual piece or a testing simulation piece. The bus comprises a plurality of node switches which are connected in series. The node switches correspond to the branch wires one to one. One end of each node switch is connected with the signal input end of the corresponding branch wire through a first switch, and the other end of each node switch is connected with the signal input end of the corresponding branch wire through a second switch. Therefore, when a simulation test is carried out, all the node switches, the first switches corresponding to all the node switches and the second switches corresponding to all the node switches are controlled, so that connection or disconnection between the bus and testing elements (the testing actual pieces or the testing simulation pieces) connected with any branch wires is controlled. The bus signal wiring device can control multiple testing elements to undergo simulation test at the same time.
Description
Technical field
The utility model relates to electronic system technical field of measurement and test, more particularly, relates to a kind of bus signals electrical power wiring assembly.
Background technology
In electronic system design process, can use to simulate and check subsystem or the design performance of whole system by the replacement of emulation part and true part, can revise at short notice change of configuration, thereby reduce the development time.When carrying out electronic system design, first to test the true part of respectively participating in the experiment and emulation part, to test the parameter characteristic of each true part and emulation part.
With reference to figure 1, traditional test circuit is the signal wiring structure of point-to-point formula, by communication cable 14, will test true part 12 or test emulation part 13 is connected with signal output apparatus 11, and being connected of respectively participate in the experiment element (testing true part or test emulation part) need to be realized by the connector matching with the true part 12 of test or test emulation part 13 in communication cable 14 ends.
The test structure of point-to-point formula is only applicable to simple test macro, can not control a plurality of testing elements simultaneously and carry out emulation testing simultaneously.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of bus signals electrical power wiring assembly, and this bus signals electrical power wiring assembly can connect a plurality of testing elements simultaneously and carry out emulation testing.
For achieving the above object, the utility model provides following technical scheme:
An electrical power wiring assembly, this bus signals electrical power wiring assembly comprises:
Bus;
Many branch lines, the signal input part of described branch line is connected with described bus, and the signal output part of described branch line is for the true part of connecting test or test emulation part;
Wherein, described bus comprises the node switch of a plurality of serial connections, described node switch is corresponding one by one with described branch line, and described node switch one end is connected with the signal input part of branch line by the first switch, and the other end is connected with the signal input part of described branch line by second switch.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described node switch is mechanical switch or electric switch.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described the first switch is mechanical switch or electric switch.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described second switch is mechanical switch or electric switch.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described bus is CAN bus.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described CAN bus is twisted-pair feeder, or concentric cable, or light transmitting fiber.
Preferably, in above-mentioned bus signals electrical power wiring assembly, the total line length of described CAN is less than 40m.
Preferably, in above-mentioned bus signals electrical power wiring assembly, described line length is less than 0.3m.
Described in the application, bus signals electrical power wiring assembly has many branch lines for being connected with the true part of test or emulation part.To any one node switch, when this node switch disconnects, during the equal closure of first switch corresponding with it and second switch, can make the branch line corresponding with this node switch be connected with bus, when this node switch closure, when first switch corresponding with it and second switch all disconnect, can make the branch line corresponding with this node switch and bus disconnect.So, while carrying out emulation testing, can be by controlling each node switch and first switch and the second switch corresponding with each node switch, control the disconnection of the element of participating in the experiment (testing true part or test emulation part) that is connected with arbitrary branch line and bus or being connected.Visible, bus signals electrical power wiring assembly can be controlled a plurality of testing elements simultaneously and carries out emulation testing simultaneously described in the application.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of signal wiring system common in prior art;
Fig. 2 a is a kind of structural representation of bus signals electrical power wiring assembly;
Fig. 2 b be shown in Fig. 2 a in bus signals electrical power wiring assembly branch line and bus realize switch connection diagram;
The structural representation of a kind of bus signals electrical power wiring assembly that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the principle schematic when testing element on arbitrary branch line is communicated with CAN bus in bus signals electrical power wiring assembly shown in Fig. 3;
Fig. 5 is the principle schematic when testing element on arbitrary branch line and CAN bus disconnect in bus signals electrical power wiring assembly shown in Fig. 3.
Embodiment
Just as described in the background section, the test structure of point-to-point formula is only applicable to simple test macro, can not control a plurality of testing elements simultaneously and carry out emulation testing simultaneously.There is bus-structured signal wiring device and can connect a plurality of testing elements simultaneously.With reference to figure 2a, bus-structured signal wiring device comprises: bus 21 and a plurality of branch lines 22 that are connected with described bus 21.Wherein, one end of described branch line 22 is connected with described bus 21, and the other end arranges connectivity port 23, for connecting test element.
With reference to figure 2b, although, bus-structured signal wiring device can access a plurality of testing elements simultaneously, but, be subject to the restriction of signaling rate in communication line, the length of each branch line is less, and Access Control switch that can not be independent on each branch line, to control the true part LRU of test or the closure of test emulation part SIM and bus 21 on corresponding branch line or to disconnect.
Take CAN(controller local area network) bus structure are example, when baud rate is 1Mbps, the maximum length of bus can be 40m, but the length of branch line but can not surpass 0.3m.And test true part or connection or the disconnection of test emulation part and bus in order to control on each branch line, can only realize by the mode of plug-in connector.But the mode of plug-in connector realizes, inefficiency; And repeatedly plug can cause the connecting needle fracture of cable, connector, introduces other system fault, has reduced measuring accuracy.
Inventor studies discovery, the switch of controlling the connecting and disconnecting of each branch line and bus can be arranged in bus, compensates the problem of each branch line curtailment by total line length.
On basis based on above-mentioned research, the utility model provides a kind of bus signals electrical power wiring assembly, and this bus signals electrical power wiring assembly comprises:
Bus;
Many branch lines, the signal input part of described branch line is connected with described bus, and the signal output part of described branch line is for the true part of connecting test or test emulation part;
Wherein, described bus comprises the node switch of a plurality of serial connections, described node switch is corresponding one by one with described branch line, and described node switch one end is connected with the signal input part of branch line by the first switch, and the other end is connected with the signal input part of described branch line by second switch.
Described bus signals electrical power wiring assembly can access a plurality of testing elements simultaneously, without plug-in connector, by controlling each node switch and first switch and the second switch corresponding with each node switch, control the disconnection of the element of participating in the experiment (testing true part or test emulation part) be connected with arbitrary branch line and bus or be connected.Visible, bus signals electrical power wiring assembly can be controlled a plurality of testing elements simultaneously and carries out emulation testing simultaneously described in the application.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, so the utility model is not subject to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, when the utility model embodiment is described in detail in detail; for ease of explanation; the schematic diagram of indication device structure can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.The three-dimensional space that should comprise in addition, length, width and the degree of depth in actual fabrication.
Based on above-mentioned thought, the embodiment of the present application provides a kind of bus signals electrical power wiring assembly, and referring to Fig. 3, this bus signals electrical power wiring assembly adopts that traffic rate is high, the CAN structure of reliability and good stability, and this bus signals electrical power wiring assembly comprises: CAN bus 31; Many branch lines 32.Wherein, the signal input part 33 of branch line 32 is connected with described CAN bus 31, and the signal output part 34 of branch line 32 is for the true part of connecting test or test emulation part.
Described CAN bus 31 comprises the node K switch 3 of a plurality of serial connections.Described node K switch 3 is corresponding one by one with described branch line 32.Each node K switch 3 is all that one end is passed through the first K switch 1 and is connected with the signal input part 33 of described branch line 32, and the other end is connected with the signal input part 33 of described branch line 32 by second switch K2.
In the present embodiment, described CAN bus 31 can be twisted-pair feeder, or concentric cable, or light transmitting fiber.In order to guarantee signaling rate, the length of described CAN bus 31 is less than 40m, and the length of described branch line 32 is less than 0.3m.
The first K switch 1 that described node K switch 3 and each node switch are corresponding and second switch K2 can be mechanical switch or electric switch.By switch, control being connected or disconnection of the true part of the test realizing on each branch line or emulation part and CAN bus, without plug-in connector, work efficiency is high, and can not cause damage to link, has guaranteed testing precision.
Preferably, in the present embodiment, all node K switch 3, all the first K switch 1 and all second switch K2 are can programme controlled electric switch.By can programme controlled electric switch, can automatically control with the true part of arbitrary branch line connecting test or test emulation part and be connected or disconnect with CAN main line, switch corresponding speed is fast, can not cause extra switch time delay.
As shown in Figure 3, in the present embodiment, in described bus signals electrical power wiring assembly, to arbitrary branch line 32, can be arranged on the first K switch 1, second switch K2 and node K switch 3 corresponding with this branch line in described CAN bus 31 by control, control being communicated with and disconnection of this branch line 32 and described CAN bus 31.Gauge tap is arranged in CAN bus 31, by described CAN bus 31, has compensated the restriction on the cable length of branch line 32.
To the testing element being connected with arbitrary branch line (testing true part or test emulation part), if need to be connected with CAN bus 31 by this testing element, only need to disconnect the node K switch 3 corresponding with this branch line, and closed first K switch 1 and the second switch K2 corresponding with this branch line, now, the annexation of this testing element and CAN bus as shown in Figure 4.If need to change testing element and 31 disconnections of CAN bus, only need the closed node K switch 3 corresponding with this branch line, and disconnect first K switch 1 and the second switch K2 corresponding with this branch line, now, the annexation of this testing element and CAN bus is as shown in Figure 5.
Known by foregoing description, bus signals electrical power wiring assembly can connect a plurality of testing elements simultaneously described in the present embodiment, and simultaneously to testing control between a plurality of tests.Without plug-in connector, work efficiency is high; And to connector not damaged, guaranteed testing precision; Meanwhile, overcome the restriction of a line length in bus structure, can be between the bus between branch line and corresponding contact switch setting program control circuit, realize more test function, as increased outer signals input circuit or increase signals collecting port etc.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a bus signals electrical power wiring assembly, is characterized in that, comprising:
Bus;
Many branch lines, the signal input part of described branch line is connected with described bus, and the signal output part of described branch line is for the true part of connecting test or test emulation part;
Wherein, described bus comprises the node switch of a plurality of serial connections, described node switch is corresponding one by one with described branch line, and described node switch one end is connected with the signal input part of branch line by the first switch, and the other end is connected with the signal input part of described branch line by second switch.
2. bus signals electrical power wiring assembly according to claim 1, is characterized in that, described node switch is mechanical switch or electric switch.
3. bus signals electrical power wiring assembly according to claim 1, is characterized in that, described the first switch is mechanical switch or electric switch.
4. bus signals electrical power wiring assembly according to claim 1, is characterized in that, described second switch is mechanical switch or electric switch.
5. bus signals electrical power wiring assembly according to claim 1, is characterized in that, described bus is CAN bus.
6. bus signals electrical power wiring assembly according to claim 5, is characterized in that, described CAN bus is twisted-pair feeder, or concentric cable, or light transmitting fiber.
7. bus signals electrical power wiring assembly according to claim 5, is characterized in that, the total line length of described CAN is less than 40m.
8. bus signals electrical power wiring assembly according to claim 5, is characterized in that, described line length is less than 0.3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503031.XU CN203422741U (en) | 2013-08-16 | 2013-08-16 | Bus signal wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503031.XU CN203422741U (en) | 2013-08-16 | 2013-08-16 | Bus signal wiring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422741U true CN203422741U (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503031.XU Expired - Lifetime CN203422741U (en) | 2013-08-16 | 2013-08-16 | Bus signal wiring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742920A (en) * | 2014-12-12 | 2016-07-06 | 中车大连电力牵引研发中心有限公司 | Branching apparatus and system of multifunctional vehicle bus (MVB) |
| CN110855451A (en) * | 2019-11-18 | 2020-02-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Non-bus signal switching system |
-
2013
- 2013-08-16 CN CN201320503031.XU patent/CN203422741U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742920A (en) * | 2014-12-12 | 2016-07-06 | 中车大连电力牵引研发中心有限公司 | Branching apparatus and system of multifunctional vehicle bus (MVB) |
| CN105742920B (en) * | 2014-12-12 | 2018-08-28 | 中车大连电力牵引研发中心有限公司 | The line device and system of double-unit traction controller |
| CN110855451A (en) * | 2019-11-18 | 2020-02-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Non-bus signal switching system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hengrun Technology Co.,Ltd. Address before: 100101 Beijing city Chaoyang District Anxiang Beili 11 B block 8 layer Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
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| CX01 | Expiry of patent term |